i want to know that if i am having a network of computers which are connected through LAN switch, if one computer is having IP address 192.168.0.10 and other is having 192.168.4.10 will they ping each other
It looks like they are on different subnets. Hard to tell because you did not post your subnet mask but if it is 255.255.255.0 then they are on different subnets. You can not talk to computers on a different subnet unless you have a router to connect them or you setup static routes in your local routing table. A switch will not do it unless you have a layer 3 switch.
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